Add login screen locale and input method device policies

ui/base/ime/chromeos/mock_input_method_manager.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_BASE_IME_CHROMEOS_MOCK_INPUT_METHOD_MANAGER_H_
 #define UI_BASE_IME_CHROMEOS_MOCK_INPUT_METHOD_MANAGER_H_
 
 #include "base/macros.h"
 #include "ui/base/ime/chromeos/input_method_manager.h"
 
@@ skipping 35 matching lines @@
     void SetInputMethodLoginDefaultFromVPD(const std::string& locale,
                                            const std::string& layout) override;
     bool CanCycleInputMethod() override;
     void SwitchToNextInputMethod() override;
     void SwitchToPreviousInputMethod() override;
     bool CanSwitchInputMethod(const ui::Accelerator& accelerator) override;
     void SwitchInputMethod(const ui::Accelerator& accelerator) override;
     InputMethodDescriptor GetCurrentInputMethod() const override;
     bool ReplaceEnabledInputMethods(
         const std::vector<std::string>& new_active_input_method_ids) override;
+    bool SetAllowedInputMethods(
+        const std::vector<std::string>& new_allowed_input_method_ids) override;
+    const std::vector<std::string>& GetAllowedInputMethods() override;
 
     // The active input method ids cache (actually default only)
     std::vector<std::string> active_input_method_ids;
 
    protected:
     friend base::RefCounted<InputMethodManager::State>;
     ~State() override;
 
    private:
+    // Allowed input methods ids
+    std::vector<std::string> allowed_input_method_ids_;
+
     DISALLOW_COPY_AND_ASSIGN(State);
   };
 
   MockInputMethodManager();
   ~MockInputMethodManager() override;
 
   // InputMethodManager:
   UISessionState GetUISessionState() override;
   void AddObserver(InputMethodManager::Observer* observer) override;
   void AddCandidateWindowObserver(
@@ skipping 28 matching lines @@
   bool IsEmojiHandwritingVoiceOnImeMenuEnabled() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockInputMethodManager);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // UI_BASE_IME_CHROMEOS_MOCK_INPUT_METHOD_MANAGER_H_